The contents and scope of ANSI/NEMA MG 1 may be viewed at www.nema.org/stds/mg1.cfm. A hard or electronic copy of the set may be purchased for $440 and a condensed version may be purchased in hard or electronic for $329 by visiting global.ihs.com or by contacting IHS at 800-854-7179 (U.S. only), 303-397-7956 (international) or 303-397-2740 (fax).

NEMA is the association of electrical equipment manufacturers, founded in 1926 and headquartered in Arlington, Virginia. Its member companies manufacture a diverse set of products including power transmission and distribution equipment, lighting systems, factory automation and control systems, and medical diagnostic imaging systems. Worldwide annual sales of NEMA-scope products exceed $120 billion.